# Duct Calculator vs TaskFlow

The clearest difference is review sentiment: Duct Calculator at 57% against TaskFlow's 0%. Duct Calculator also leads on rating (4.5 vs 1.0) and ratings volume (189 vs 1). TaskFlow's advantage is price (Free vs $19.99) and iOS requirement (13.0 vs 15.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

TaskFlow is free to download; Duct Calculator costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Duct Calculator holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Duct Calculator has 189 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 57% of Duct Calculator's written reviews are positive against 0% of TaskFlow's.

## The numbers

| Metric | Duct Calculator | TaskFlow |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[4.5 (189 ratings)](https://appshunter.io/ios/app/duct-calculator/id1078238132/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/taskflow-project-management/id6757191241/reviews) |
| Number of ratings | **189** | 1 |
| Positive reviews | **57.1% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | Free |
| Size | 2 MB | 63 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pheinex, LLC](https://appshunter.io/developer/996932317) | [Thuan Nguyen](https://appshunter.io/developer/1457531683) |

## What reviewers say

### Duct Calculator

[App page](https://appshunter.io/ios/app/duct-calculator/id1078238132)

This app allows HVAC professionals to quickly and accurately size new ducts or calculate the performance of existing ones. It supports both round and rectangular ductwork, offering precise calculations through direct entry or intuitive sliders. The tool provides live updates and outputs key performance metrics.

**Highlights:** Size round and rectangular ductwork, Adjust airflow, diameter, width, and height, Direct number entry for precision, Lockable dimensions for 'what-if' scenarios, Live update of calculated values, Outputs velocity and pressure drop, Supports IP and SI units

**Features:** Vision Pro support

**In-app purchases:** none


### TaskFlow

[App page](https://appshunter.io/ios/app/taskflow-project-management/id6757191241)

This visual project management app simplifies team workflows with customizable Kanban boards. Effortlessly organize tasks using drag-and-drop functionality, set due dates, and collaborate in real-time with team members. It's designed to keep everyone synchronized and projects on track.

**Highlights:** Visual project boards, Drag-and-drop task management, Team collaboration, Smart notifications, Activity log, Customizable lists

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Duct Calculator free?

Duct Calculator costs $19.99, with no in-app purchases.

### Is TaskFlow free?

TaskFlow is free to download, with no in-app purchases.

### Which has better reviews, Duct Calculator or TaskFlow?

Duct Calculator is rated higher. Duct Calculator averages 4.5 out of 5 from 189 ratings, while TaskFlow averages 1.0 from 1 ratings.

### Do Duct Calculator or TaskFlow have ads?

Neither Duct Calculator nor TaskFlow shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*